View Single Post
  #6  
Old 19-11-2012, 10:32 AM
mswhin63's Avatar
mswhin63 (Malcolm)
Registered User

mswhin63 is offline
 
Join Date: May 2009
Location: Para Hills, South Australia
Posts: 3,622
I think the problem is that I use dithering as a method of noise reduction. The dark are not dithered so it think the reference is the same as far as noise. I a not 100% sure on this one but when the weather clears a bit more I will have a go without dithering.

Flats combined below
Attached Thumbnails
Click for full-size image (NGC253_120sF.jpg)
169.2 KB7 views
Reply With Quote